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// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifdef UNSAFE_BUFFERS_BUILD
// TODO(crbug.com/390223051): Remove C-library calls to fix the errors.
#pragma allow_unsafe_libc_calls
#endif
#include <stddef.h>
#include <stdint.h>
#include <memory>
#include <string>
#include "base/functional/bind.h"
#include "base/location.h"
#include "base/run_loop.h"
#include "base/task/single_thread_task_runner.h"
#include "base/test/test_timeouts.h"
#include "build/build_config.h"
#include "chrome/browser/extensions/extension_service_test_base.h"
#include "chrome/test/base/browser_with_test_window_test.h"
#include "content/public/browser/storage_partition.h"
#include "extensions/browser/api/socket/udp_socket.h"
#include "mojo/public/cpp/bindings/pending_receiver.h"
#include "mojo/public/cpp/bindings/pending_remote.h"
#include "net/base/io_buffer.h"
#include "net/base/ip_address.h"
#include "net/base/test_completion_callback.h"
#include "services/network/network_context.h"
#include "services/network/public/mojom/udp_socket.mojom.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace extensions {
class UDPSocketUnitTest : public extensions::ExtensionServiceTestBase {
protected:
// extensions::ExtensionServiceTestBase:
void SetUp() override { InitializeEmptyExtensionService(); }
std::unique_ptr<UDPSocket> CreateSocket() {
network::mojom::NetworkContext* network_context =
profile()->GetDefaultStoragePartition()->GetNetworkContext();
mojo::PendingRemote<network::mojom::UDPSocket> socket;
mojo::PendingRemote<network::mojom::UDPSocketListener> listener_remote;
mojo::PendingReceiver<network::mojom::UDPSocketListener> listener_receiver =
listener_remote.InitWithNewPipeAndPassReceiver();
network_context->CreateUDPSocket(socket.InitWithNewPipeAndPassReceiver(),
std::move(listener_remote));
return std::make_unique<UDPSocket>(std::move(socket),
std::move(listener_receiver),
"abcdefghijklmnopqrst");
}
};
static void OnConnected(int result) {
EXPECT_EQ(0, result);
}
static void OnCompleted(int bytes_read,
scoped_refptr<net::IOBuffer> io_buffer,
bool socket_destroying,
const std::string& address,
uint16_t port) {
// Do nothing; don't care.
}
static const char kTestMessage[] = "$$TESTMESSAGETESTMESSAGETESTMESSAGETEST$$";
static const int kTestMessageLength = std::size(kTestMessage);
net::AddressList CreateAddressList(const char* address_string, int port) {
net::IPAddress ip;
EXPECT_TRUE(ip.AssignFromIPLiteral(address_string));
return net::AddressList::CreateFromIPAddress(ip, port);
}
static void OnSendCompleted(int result) {
EXPECT_EQ(kTestMessageLength, result);
}
TEST_F(UDPSocketUnitTest, TestUDPSocketRecvFrom) {
std::unique_ptr<UDPSocket> socket = CreateSocket();
// Confirm that we can call two RecvFroms in quick succession without
// triggering crbug.com/146606.
socket->Connect(CreateAddressList("127.0.0.1", 40000),
base::BindOnce(&OnConnected));
socket->RecvFrom(4096, base::BindOnce(&OnCompleted));
socket->RecvFrom(4096, base::BindOnce(&OnCompleted));
}
TEST_F(UDPSocketUnitTest, TestUDPMulticastJoinGroup) {
const char kGroup[] = "237.132.100.17";
std::unique_ptr<UDPSocket> src = CreateSocket();
std::unique_ptr<UDPSocket> dest = CreateSocket();
{
net::TestCompletionCallback callback;
dest->Bind("0.0.0.0", 13333, callback.callback());
EXPECT_EQ(net::OK, callback.WaitForResult());
}
{
net::TestCompletionCallback callback;
dest->JoinGroup(kGroup, callback.callback());
EXPECT_EQ(net::OK, callback.WaitForResult());
}
std::vector<std::string> groups = dest->GetJoinedGroups();
EXPECT_EQ(static_cast<size_t>(1), groups.size());
EXPECT_EQ(kGroup, *groups.begin());
{
net::TestCompletionCallback callback;
dest->LeaveGroup("237.132.100.13", callback.callback());
EXPECT_NE(net::OK, callback.WaitForResult());
}
{
net::TestCompletionCallback callback;
dest->LeaveGroup(kGroup, callback.callback());
EXPECT_EQ(net::OK, callback.WaitForResult());
}
groups = dest->GetJoinedGroups();
EXPECT_EQ(static_cast<size_t>(0), groups.size());
}
TEST_F(UDPSocketUnitTest, TestUDPMulticastTimeToLive) {
const char kGroup[] = "237.132.100.17";
std::unique_ptr<UDPSocket> socket = CreateSocket();
EXPECT_NE(0, socket->SetMulticastTimeToLive(-1)); // Negative TTL shall fail.
EXPECT_EQ(0, socket->SetMulticastTimeToLive(3));
socket->Connect(CreateAddressList(kGroup, 13333),
base::BindOnce(&OnConnected));
}
TEST_F(UDPSocketUnitTest, TestUDPMulticastLoopbackMode) {
const char kGroup[] = "237.132.100.17";
std::unique_ptr<UDPSocket> socket = CreateSocket();
EXPECT_EQ(0, socket->SetMulticastLoopbackMode(false));
socket->Connect(CreateAddressList(kGroup, 13333),
base::BindOnce(&OnConnected));
}
// Send a test multicast packet every second.
// Once the target socket received the packet, the message loop will exit.
static void SendMulticastPacket(base::OnceClosure quit_run_loop,
UDPSocket* src,
int result) {
if (result == 0) {
auto data = base::MakeRefCounted<net::WrappedIOBuffer>(kTestMessage);
src->Write(data, kTestMessageLength, base::BindOnce(&OnSendCompleted));
base::SingleThreadTaskRunner::GetCurrentDefault()->PostDelayedTask(
FROM_HERE,
base::BindOnce(&SendMulticastPacket, std::move(quit_run_loop), src,
result),
base::Seconds(1));
} else {
std::move(quit_run_loop).Run();
FAIL() << "Failed to connect to multicast address. Error code: " << result;
}
}
static void OnMulticastReadCompleted(base::OnceClosure quit_run_loop,
bool* packet_received,
int count,
scoped_refptr<net::IOBuffer> io_buffer,
bool socket_destroying,
const std::string& ip,
uint16_t port) {
EXPECT_EQ(kTestMessageLength, count);
EXPECT_EQ(0, strncmp(io_buffer->data(), kTestMessage, kTestMessageLength));
*packet_received = true;
std::move(quit_run_loop).Run();
}
// TODO(crbug.com/40182531): Test is flaky on Mac.
#if BUILDFLAG(IS_MAC)
#define MAYBE_TestUDPMulticastRecv DISABLED_TestUDPMulticastRecv
#else
#define MAYBE_TestUDPMulticastRecv TestUDPMulticastRecv
#endif
TEST_F(UDPSocketUnitTest, MAYBE_TestUDPMulticastRecv) {
const int kPort = 9999;
const char kGroup[] = "237.132.100.17";
bool packet_received = false;
std::unique_ptr<UDPSocket> src = CreateSocket();
std::unique_ptr<UDPSocket> dest = CreateSocket();
// Listener
{
net::TestCompletionCallback callback;
dest->Bind("0.0.0.0", kPort, callback.callback());
EXPECT_EQ(net::OK, callback.WaitForResult());
}
{
net::TestCompletionCallback callback;
dest->JoinGroup(kGroup, callback.callback());
EXPECT_EQ(net::OK, callback.WaitForResult());
}
base::RunLoop run_loop;
// |dest| is used with Bind(), so use RecvFrom() instead of Read().
dest->RecvFrom(
1024, base::BindOnce(&OnMulticastReadCompleted, run_loop.QuitClosure(),
&packet_received));
// Sender
EXPECT_EQ(0, src->SetMulticastTimeToLive(0));
src->Connect(
CreateAddressList(kGroup, kPort),
base::BindOnce(&SendMulticastPacket, run_loop.QuitClosure(), src.get()));
// If not received within the test action timeout, quit the message loop.
base::SingleThreadTaskRunner::GetCurrentDefault()->PostDelayedTask(
FROM_HERE, run_loop.QuitClosure(), TestTimeouts::action_timeout());
run_loop.Run();
EXPECT_TRUE(packet_received) << "Failed to receive from multicast address";
}
} // namespace extensions
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